What products are formed during the electrolysis of a concentrated aqueous solution of sodium chloride? I. Cl2 (g) II.NaOH (aq), III. H2 (g)

Question

What products are formed during the electrolysis of a concentrated aqueous solution of sodium chloride? I. Cl2 (g) II.NaOH (aq), III. H2 (g) (A) I only (B) I and II only (C) I and III only (D) All of these

Tardigrade Admin · Accepted Answer

NaCl → Na++Cl-; 2 Cl- → Cl2+2e- HOH → H++OH-; 2H+ +2e- → H2; Na+OH- → NaOH

Q. What products are formed during the electrolysis of a concentrated aqueous solution of sodium chloride?
I. $C l_{2} (g)$
II. $N a O H (a q)$ ,
III. $H_{2} (g)$

I only

I and II only

I and III only

All of these

$N a Cl \to N a^{+} + C l^{-}; 2 C l^{-} \to C l_{2} + 2 e^{-}$
$H O H \to H^{+} + O H^{-}; 2 H^{+} + 2 e^{-} \to H_{2}$ ;
$N a + O H^{-} \to N a O H$

Q. What products are formed during the electrolysis of a concentrated aqueous solution of sodium chloride? I. Cl2​(g) II.NaOH(aq), III. H2​(g)